It appears that is the basis of the lawsuit in California:

Two trade groups, the National Shooting Sports Foundation (NSSF) and the Sporting Arms and Ammunition Manufacturers Institute (SAAMI), have filed a lawsuit seeking both declaratory and injunctive relief against what the groups perceive as an attempt to ban semi-automatic handguns in the state.[8] In February 2015 a federal judge upheld the microstamping requirement, ruling that it does not violate the Second Amendment.[9]

On December 1, 2016, a California Appellate Court reversed the Fresno Superior Court’s dismissal of the NSSF and the SAAMI lawsuit seeking an injunction to block enforcement of the state’s ammunition microstamping law and remanded the case back to the lower court to hear arguments.[10]

So when a case has been fired twice, it'll have two microstamps on it?

How or where would I go to modify all of my guns to do the micro-stamping?

Tom Flynn

Don't worry Tom, it'll never get that far.

They probably said the same thing about Obamacare !!

OUCH!

Interesting article for the Nay Sayers.
Somewhat older but I did not know this. Did you?
https://foxtrotalpha.jalopnik.com/the-navy-seals-may-have-selected-a-new-pistol-of-choice-1749620057

Here's several articles worth considering.
https://sofrep.com/74600/will-glock-19-work-navy-seals/

https://loadoutroom.com/17950/glock-19-hands-navy-seals/

Good reading Warren, Thanks for links..
Back on track !!

Well this not only sounds interesting but a reasonably priced upgrade.
https://www.tactical-life.com/firearms/handguns/wilson-combat-glock-19-gen4/